ABOUT US 

With 30+ years of combined experience, McMahon Heating & Air proudly serves residential and commercial customers across South Mississippi and surrounding areas. Built on hard work, honesty, and dependable service, our team is committed to keeping homes and businesses comfortable with quality HVAC solutions you can trust.

What Sets Us Apart

What sets McMahon Heating & Air apart is our commitment to honest work, dependable service, and treating every home like it’s our own. We don’t believe in quick fixes or cutting corners, just skilled craftsmanship, clear communication, and solutions you can trust to last. When you call us, you’re not just another job on the schedule, you’re a priority, and we show up ready to take care of you right the first time.

A Focus on Quality.

At McMahon Heating & Air, quality is at the center of everything we do. From the equipment we install to the service we provide, we believe every job deserves attention to detail and care. We take pride in doing the work the right way, using trusted products, honest recommendations, and dependable craftsmanship our customers can rely on for years to come.

Reliability You Can Count On

When you call us, you can count on dependable service from a team that values your time and comfort. We show up ready to work, communicate honestly, and stand behind what we do. Whether it’s a quick repair or a full installation, our goal is to provide reliable solutions and peace of mind every step of the way.

We offer financing.

We understand that heating and cooling repairs or replacements can come unexpectedly. That’s why McMahon Heating & Air offers financing options to help make your comfort more affordable. Whether you need a repair, new system installation, or upgrade, we’re here to help you find a solution that works for your home, business, and budget.

Services we offer

  • HVAC Repair

  • HVAC Installation

  • Preventative Maintenance

  • Residential HVAC Services

  • Commercial HVAC Services

  • Heating Services

  • Air Conditioning Services

  • Ductwork Installation & Repair

  • System Replacements

  • Indoor Air Quality Solutions

  • Thermostat Installation

  • Emergency Service Calls

  • Seasonal Tune-Ups

  • New Construction HVAC

  • HVAC Inspections

  • Ventilation Services

  • Thank you and your team so much, Cody, for your prompt response to our AC problem! We truly appreciate you.

    Elizabeth Ann Miller

  • I must thank and highly recommend Cody and his team, aka McMahon Heating & Air, for any and all of your HVAC needs. I made a service call late Wednesday (1/24), they came Thursday (1/25), and I had a new 5-ton unit installed, inside and out, by Tuesday (1/30). They also had to reroute ductwork as well. Who could ask for better service?

    Sky High

  • Best service and prices ever!!! Highly recommend!!!

    Nancy Maloney Mason